Showing posts with label Histology. Show all posts
Showing posts with label Histology. Show all posts

Saturday, May 3, 2014

Which cell secretes what? Male reproductive system mnemonics

LH stimulates Leydig cells to produce Testosterone.
Testosterone converts the Wolffian ducts into male accessory structures.
Mnemonic: There is a L in LH and Leydig.
If you flip around the letter L, it looks like a T.

FSH stimulates Sertoli cells to produce Sperm.
Mnemonic: There is a S in FSH, Sertoli, and Sperm.

Inhibin is secreted from the Sertoli cells and it inhibits FSH secretion.
Mnemonic: sertoli ends in I for Inhibin.

Sertoli cells secrete MIF that inhibit female paramesonephric duct development.
Mnemonic: sertoli ends in I for mullerian Inhibiting factor (MIF).

Related posts:
Which cell secretes what? A simplified ovarian cycle comic video
Which cell secretes what? Gastric mucosa histology mnemonics

Tuesday, April 22, 2014

Burkitts lymphoma mnemonic

Hey everyone!
A quick "things to remember" list about Burkitts lymphoma for tests!

- B cell lymphoma (B for Burkitts, B for B cells!)
- All types of Burkitt's lymphoma are characterized by disregulation of the c-myc gene.
- Myc (c-Myc) is a regulator gene that codes for a nuclear transcription factor.
- The most common variant is t(8;14).
- The "starry sky" appearance on histology
- It is due to scattered tingible body-laden macrophages (macrophages containing dead body of apoptotic tumor cells).

The mnemonic *drum roll*

Saturday, April 5, 2014

Difference between primary biliary cirrhosis and primary sclerosing cholangitis mnemonic

Greetings people!
Primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC).. Because both have the word primary and are associated with the hepatobiliary system, it's easy to mix em up.

Here's how I keep them straight -

Monday, December 30, 2013

Parotid tumors mnemonic

I had trouble remembering that Warthin's tumor is "Papillary cystadenoma lymphomatosum" and this happened.
Yes, feel the "Warth" (or maybe I'm just weird!)

Wrath of the Pa-cyst-ans? Warthin's tumor? Papillary-cystadenoma-lymphomatosum? YES!

Saturday, December 28, 2013

Which cell secretes what? Gastric mucosa histology mnemonics

"pH" for Parietal cells secrete H+ ions.
Parietal cells are also known as oxyntic cells.

"PC" for Pepsin is secreted by Chief cells.
(Chief cells are also known as peptic cells or zymogen cells.)
Alternate mnemonic: I think of master chef making food rich in proteins, peptides being degraded by pepsin and that's how I remember the association that Chief cells secrete Pepsin.

G for G cells & G for Gastrin. (Hah! That was easy!)

S for S cells & S for Secretin! (Medicine is easy!)

Tuesday, September 10, 2013

Difference between chronic atrophic gastritis type A and type B

What is chronic atrophic gastritis?
It is a process of chronic inflammation of the gastric mucosa.

What are the causes of chronic atrophic gastritis?
It can be caused by persistent infection with Helicobacter pylori, or can be autoimmune in origin.